SFJazz today announced the lineup for the 31st annual San Francisco Jazz Festival, which, starting this year, consists of shows in late spring and early summer. There will be 23 concerts over nearly two weeks (June 12-23), with headliners including pianist Ahmad Jamal, Brazilian singer-songwriter Milton Nascimento, and Cuban-born percussionist Pedrito Martinez, whose band is one of the hot underground acts in New York.

Most of these events will take place at the $64 million SFJazz Center, which has proven a hit with concertgoers since its January opening. Stephan Bollani, the Italian pianist, opens the festival there on June 12, followed by Nascimento on the 13th. Jamal's concert, on the 16th, moves down the block to a larger venue: Davies Symphony Hall. An influential and popular player for decades -- his "Poinciana" was a jukebox hit in the '50s -- Jamal, 82, is riding another wave of influence among young musicians. Listen to his classic recordings; he and his streamlined trio pointed toward hip-hop rhythms, over half a century ago.

Tickets go on sale to SFJazz members on April 10 at 11 a.m., and to the general public on April 24 at 11 a.m. For full festival schedule and other details, go to www.sfjazz.org.

Over the past three decades, the San Francisco Jazz Festival spanned several weeks each fall at venues across San Francisco and the East Bay. The new version of the festival is a sort of bridge between the SFJazz Center's inaugural "Season 1" (which is ongoing through early June) and an upcoming summer festival, for which details are still to be announced. "Season 2" at the SFJazz Center begins in September.